Hey, so I'm seeing a lot of games that use the "only one" as a basis for the mechanics of the game, e.g. one button, one character, one life, one map. 

If you have your game's narrative based on the "only one" theme I would like to play it. 

We made Head Ache, where the character is alone due to a traumatic history and must fight the inner demons of his mind to finally re-embrace the world. 

Link to the game: https://late-panda.itch.io/head-ache
Link to the ratings: https://itch.io/jam/gmtk-2019/rate/461532

Our game is primarily story driven, https://portrait-prophecies.itch.io/while-the-whole-world-laughs, the theme "only one" is in reference to the protagonist being disjointed from existence by their lack of memories, and their final choice in the story.

I've made a game called If, is an Gameboy RPG narrative based game. My only one's were: one action button, one character, one place, one enemy, one NPC and one battle. 

The game's synopsis: In If, player controls Penny a pilot who set off on a journey to find Des her partner in the archaeological site El Zotz.

https://itch.io/jam/gmtk-2019/rate/461616